Sweeper.



J, A, HUMM.

SWEEPER.

APPLICATION FILED mm: 24, 1911.

1 $44,052. Patented 11101-12, 1912.

2 SHEETS-SHEET 2.

v lg

$.13, m 40 MW WZM JOSEPH A. HUMM, OF ELYRIA, OHIO.

SWEEPER.

I Specification of Letters Patent.

Application filed June'24, 1911.

Patented Nov. 12, 1912. Serial No. 635,239.

To all whom it may concern:

Be it known that I, JOSEPH A. HUMM, a

citizen of the United States, residing at Elyria, in the county of' Lorain and. State of Ohio, have invented a certain new and useful Improvement in Sweepers, of which the following is a full, clear, and exact description.

This invention relates to street cleaning apparatus and providesf'a device which will remove dirt and refuse from the surface upon which it operates,"and elevate and convey the same to a receptacle, which may be a. wagon, to which the cleaning device may be attached. x

Generally speaking, the invention comprises the elements and combinations thereof set forth in the accompanying claims.

Reference should be had to the accompanying drawings -forming apart of this specification, in which--. Figure l is a side elevation with the cover partially removed; Fig. 2 is a top plan view with the cover removed; Fig. 3 is a central longitudinally vertical section .of a portion of the device; Fig. tisa plan partially in section showing a detail of construction and is taken upon the line 4-4 of Fig. 1. 1 and 2 represent the side members of a frame which at its forward end is joined by means of a cross member 8. At their rear ends, the members 1 and 2 are secured upon an axle 4:, upon which are mounted wheels '5 and 6. At the forward end, the side members 1 and 2 are mounted upon wheels 7 and r 8, bymeans of an ordinary construction,

such as is present in-all wagons, permitting the front wheels to turn upon a central axis.

Depending from the members 1 and 2 are vertical bars, one of which is represented at 9,'in F ig. 1, and the other represented at 10 in 'Fig. 3. These bars at their lower ends are joined with the members 1 and 2 by means of bent braces 11 and 12. These braces 11 and 12 extend slightly beyond the bars 9.and 10, and upon their free ends there are pivoted members 13 and 14, which I term supports, as willbe clearly seen in Figs. 1 and 2. These members 13 and 14 extend toward the rear of the device and upon these last mentioned members are mounted the opposite ends of a brush shaft 15, this shaft being mounted in suitable journal. boxes, one of which is indicated at 17, the manner of mounting being of no particular importance. Upon the shaft 15 is a brush generally indicated at 18 which may be of any desired construction, being stiff and strong enough to elevate such material as it may be required to act upon.

Partially surrounding the brush is a hood,

19, the same extending above the brush a suflicient distance to direct the material raised by the brush toward a conveyer which will later be described. Upon the outside of the hood a receptacle or pocket 20 which is adapted to contain suitable material to place sutficient weight upon the hood to hold it down. This hood is provided with ends indicated at 21, and these ends are pivoted upon the brush shaft 15, the construction being such that the hood 19 able upon this shaft.

Cofiperating with the hood 19 is a scraper 22, the same being provided with substantially vertical ends represented at 23, and these ends are pivotally mounted upon the brush shaft 15 in such a manner that they are freely movable thereon. The scraper is provided with a sharpened edge in order that it may dislodge the material upon which the brush is intended to act. The scraper at its rear edge bears against the lower portion of the hood 19, by which it is firmly held in its position.

Upon each of the members 13 and let is pivoted a lever 21 and 25, which at its lower end is bent at anangle to the main portion, and at the lower part of the bent portion are mounted wheels 26 and 27. At their upper ends the lovers 2% and are pivotally secured to links 28 and 29, which extend toward the rear end of the device and are in turn secured to levers and 31, which are respectively pivoted uponthc sidc members 1 and 2. These levers 30 and 31 are provided with hamllcs, and with locking pawls, which are of ordinary construction, so that the lovers 30 and 31 may beheld or located in any adjusted position. By the mauipulation of these lovers, the position of the lovers 24 and 25 may be varied, and thereby the Wheels 26 and 27 may be moved with re spe'ct to the pivoted side members 13 and 1 1 and by so much the position of the brush is freely movwith respect to the surface upon which it is acting may be raised. This movement may be such as to raise or lower the brush, and further, inasmuch as the levers 30 and 31 may be independently moved, it is possible cleaner brush and to ad ust the opposite ends of the brush independently of each other. Such an adjustment is of reat importance in cleaning 3 streets, for it permits the ends of the brush to be lmvered, it the street is not level, and

it should further be i the brush has acertain latitude of movement,

for it is not rigidly held and therefore it may accommodate itself to the lesser irregularities of the surface upon which it operf ates.

ft sh. ends t'h abort upon the horizontal portion ot the braces 11 and l2. Near opposite ends of this shalt there are mounted sprocket wheels 83' and. Sat which upon their outer faces are provided with clutch teeth. Upon the same shait 3n at the opposite ends thereof, but unsecured to the shaft, are sprocket whci-ilsfio and 3b which are also provided with clutch tooth upon their inner faces that cooperate with the clutch teeth upon the sprocket wheels 33 and 3t. These sprocket wheels 35 and 36 are held in engagement with the sprocket wheels and 3-1- by means of springs, one of said springs 37 being shown in Fig. 4. The spring 37 is seated within a. cup shaped member 38 which is held in place by a nut 39 that may be locked in position. Y

Between the sprocket wheels 33 and 35 is another spring 40 which surrounds the shaft This spring tends to push the two sprocket wheels apart, but is weaker than the spring 3'7, and therefore normally is in'- operative. However, if the nut 39 be loosened so as to relieve the tension of the spring 37, the spring at) will imn'lediately act and push the sprockets 83 and 35 apart, thereby destroying their driving relationship. This construction just described is duplicated with respect to sprocket; wheels 34 and 36. From this it will be apparent that when desired, the brush, as will later appear, may be opcratively disconnected from the wheels of the device which furnish .the motive power. This construction per-- nuts the apparatus to be drawn irom place to place without necessarily operating the elevator. The clutch mechanism between the sprockets 33 and 35 and the sprockets upon the opposite side of the shaft ermits the apparatus to turn corners wit out strain upon the mechanism.

Each of the wheels 5 and 6 carry an annular sprocket wheel t1 and 42. The sprocket wheel all is operatively connected with the sprocket wheel 35 by means of a sprocket chain 43, while the sprocket wheels 42 and are similarly connected by a chain 44;. Upon the opposite ends of the brush shaft 15 are sprocket wheels -16 and which by means of sp ock t h t8 eta, rc up 1 l g 32 is included near the opposite l .placed suliiciently close to the ratus may be and 34. By means of these connections, the motion of the wheels 5 and 6 produces r0- tation of the brush 18.

At the forward end oi the device is an elevator which in this instance is of the endless bucket variety, which is adapted to convey material supplied thereto by the brush, into any suitable receptacle. This. elevator is formed with side pieces 50 and Til which at their inner ends are ivotcd upon the shaft At their opposite ends, the members and 51 are joined by means of a rod 52. Extending between the side pieces 50 and 51 is a partition which prevents any ma terial spilling from the buckets from falling through. This partition or floor is in close proximity to the lower portions of the buckets and any material which collects upon this floor is carried along by engagement with the buckets and deposited in the proper receptacle.

Near the opposite ends of the rod 5 are sprocket wheels 54 and 55 which are lposel mounted upon the rod 52. Upon the "sha t 32 are secured the sprocket wheels 56 and 57 which sprocket wheels are adapted to turn with the shaft 32. Passing over the sprocket wheels 5% and 56, as Well as the sprocket wheels 55 and 57, are sprocket chains 58 and 59, and extending between the sprocket chains 58 and 59 are a series of buckets indicated at 60, which operate in a manner easily to be understood. At its lower or inner end, this bucket conveyor is brush so that the material raised by the brush will be deflected by the hood 19 upon the conveyor, this material finding lodgment in the buckets, and as before stated, such materialas falls between the buckets will be carried along by engagcn'lcnt with the buckets and deposited in the receptacle.

Any suitable receptacle may be provided to receive the material from the conveyor, but it is the intention to use this device in connection with a wagon, and to so place the conveyor that the material carried there by will be deposited in the wagon, as is indicated in Fig. 1. With this in view, the axle for thefront wheels of the cleaning apparovidcd with a ton no '61 which may be fiistened in any desire manner, as indicated at 62 in Fig. 1.

The conveying mechanism as a whole may be moved wlth respect to the frame of the cleaning device about the shaft 32 as a pivot, and the elevating device will be held in po sition by means of pins, one of which is shown at 63 which may engage in various openings formed 1n thesides 50 and 51 and. the members 1 and 2. A .At the rear end of the apparatus, a plat it is supported. from the side members news of vertical.hangers tiland resented in F1 l. and 0. Upon this platform the attendantof the device the members 13 and 1-tof the auxiliary' frame may be secured in raised position. The simplest form of 'sltt'll means may be pins, one of which is shown at titl in engagement with an openin in member (38. The support 1 3 may be raised to rest up n the pin (it); the same construction will be provided upon the opposite side of the device, and in this manner the supports for the brush and therefore the brush may be raised and held. it is possible to raise the brush off of the surface to be cleaned by the levers 30 and 31, but forsome purposes I prefer the construction just setforth.

A cover T0 is provided which is supported updn the side memhersl and 2 of the frame and covers the parts of the device which might throw dust. The conveyer extends through an opening in this cover and, if necessary, an auxiliary hood may be provided which will also serve to direct. the material being discharged into the receptacle.

llaving thus described my invention, what I claim is:

1. la a device of the character described. the combination with a frame. wheels upon which said 'frame is mounted, a platform supported by the frame upon which the op-- erator of the device may stand, operating hand levers pivoted upon the frame adjacent to said platforn'i, supports pivotally carried by said frame, a rotatable brush journaled upon said supports. wheels beneath said supports, means adjustably mounting the supports upon the wheels, connections between said adjustable means and said hand levers whereby the wheels may be adjusted relative to the supports from the operators platform. and operative connections between one of the wheels upon the frame and said brush to operate. the same.

2. In a device of the character described, the comlnnatimi with a tramc. wheels upon which said frame is mounted. a platform supported by the frame upon which the op erator of. the device may stand, operating hand levers pivoted upon the frame adjacent to said platform, supports 'iivotally carried by the said frame, pivoted levers carried by the supports. which levers are operatively connected with the operating; hand levers, Wheels adapted to travel upon the same surface as the brush, said wheels being carried by the pivoted levers, a rotatable brush mounted upon said supports, a. conveyer mounted in the frame and adapted to receive material swept. by the brush, an operative connection between one of the wheels upon the frame, the brush and the eonveyer, whereby the brush and convcyer are operated.

3. In a device of the character described, the c nnbination with a frame and wheels upon which said frame is mounted, hangers depending from the first nentioned frame, supports hingedty secured at one of their ends to the hangers, a brush, the opposite ends of which are mounted upon the supports, levers pivoted upon the supports, wheels carried at. the lower ends of the said levers and adapted to contact the surface upon which the brush is operating, means for independmitly moving the said levers and holding them in adjusted position, and means for rotating said brush.

at. In a device of the character described, the combination with a frame and wheels upon which said fran'ie is mounted, of supports pivotally carried bythe first mentioned frame, the supports being;- imtepemlently movable, a brush having; the opposite ends thereof mounted upon the supports, levers pivoted upon the side members of the auxiliary frame, wheels mounted atv the lower end of said levers, a platform mounted upon the first mentioned frame, han'l levers mounted upon the first mentioned frame adjacent said platform, operative connections between the. said hand levers and the levers pivoted upon the sides of the auxiliary frame, whereby the said ieversnmy be indeperulently adjusted, aml means for rotating the said brush.

5. in a device of the character described, the combination with a frame amt wheels upon which the said frame is mounted, of supports pivotally carried by the first mentioned frame. a rotatable brush carried by the supports. an elevator supported by the frame. one end of the same being in proxin' ity to the brush, a shield partially surrounding the said brush and directing the material raised by the brush upon the said elevator, and a scraper supported by the auxiliary frame and adapted to engage the surface upon which the brush is operating.

In testimony whereof, I hereunto atlix my signature in the presence of two witnesses.

Witnesses llt) 

